Three day prospective diet records will be completed on 25 children aged 5-13 with ADHD, their sibling controls, and 25 children from control families without ADHD in order to assess their protein, carbohydrate, fat, calorie, and multiple specific nutrient intakes. In addition, a questionnaire will be completed on each child describing several aspects of eating behavior, food choices, and gastrointestinal, allergic, and infectious concomitants.